Cerebello-Olivary Projections in the Rat

Anguat, P; Cicirata, F

doi:10.1159/000121612

Cited by 50 publications

(16 citation statements)

References 13 publications

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“…Similar results were also obtained by Rispal-Padci et al [171. These physiological findings are in agreement with the ana tomical description of cerebellar projections to the VL [18,19]. …”

Section: Convergent Inputs From the Interpositus And The Dentate Nuclsupporting

confidence: 90%

Input-Output Organization of the Ventrolateral Nucleus of the Thalamus

Shinoda¹,

Futami²,

Kakei³

1993

Stereotact Funct Neurosurg

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Input-output Organization of the ventrolateral nucleus (VL) of the thalamus was analyzed electrophysiologically and morphologically at the Single cell level. Virtually all pyramidal tract neurons in the motor cortex and area 6 received convergent inputs from the dentate (DN) and the interpositus (IN) nuclei and about 60% of thalamocortical (TC) neurons received convergent inputs from both the DN and the IN. Anterograde labelling following focal injection of Phaseolus vulgaris leukoagglutinin and intracellular staining of TC axons showed that the terminals in layer III tended to aggregate into patches about 1–1.5 mm wide in a frontal plane, which were arranged in longitudinal Strips about 2–5 mm long in a rostrocaudal direction.

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“…Similar results were also obtained by Rispal-Padci et al [171. These physiological findings are in agreement with the ana tomical description of cerebellar projections to the VL [18,19]. …”

Section: Convergent Inputs From the Interpositus And The Dentate Nuclsupporting

confidence: 90%

Input-Output Organization of the Ventrolateral Nucleus of the Thalamus

Shinoda¹,

Futami²,

Kakei³

1993

Stereotact Funct Neurosurg

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“…However, the 'dorsolateral hump' (DLH) of Good man et al [1963] was considered a part of the NL [Angaut and Cicirata, 1982]. The delineation of magno-(NRm) and parvocellular (NRp) subdivi sions of the NR described here agrees with that of Reid et al [1975].…”

Section: Methodssupporting

confidence: 74%

The Dentatorubral Projection. An Autoradiography Study in Rats

Angaut¹,

Cicirata²,

Serapide

1987

Brain Behav Evol

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Although the dentatorubral projection is known to end specifically in the parvocellular part of the red nucleus, its topographical arrangement has never been elucidated. We therefore selectively injected the lateral cerebellar nucleus (homologous to the dentate nucleus of primates) of adult Wistar rats with tritiated leucine or proline in order to trace the dentatorubral boundaries. In all cases, the projection was found to extend rostrocaudally throughout the parvocellular red nucleus; dorsoventrally as well as mediolaterally, the fibers were distributed according to the location of the injection within the lateral cerebellar nucleus. Hence, caudal regions of the lateral nucleus fibers dorsally at the rubral level, rostral regions project ventrally. This dorsoventral arrangement matches the segregation of the parvocellular red nucleus into a dorsal 'forelimb' region and a ventral 'hindlimb' region corresponding to its spinal efferents. In addition, only the ventral part of the lateral cerebellar nucleus, particularly the parvocellular region (subnucleus lateralis parvocellularis), projects to the lateral aspect of the parvocellular red nucleus. These results suggest a common pattern of organization of the dentorubral and the dentatothalamic projections.

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“…Although our data in rats seem to correspond to the cortical subdivision of the lateral cortex reported in cats, the cortical region which pro jects to DLH could not be simply identified as the D1 zone from its location, as in cats, because of the dis agreement regarding the classification of DLH as a component of the interpositus or lateral nuclei. With respect to its fiber connections [24,25], DLH should be considered a component of LN. Therefore, the re gion that projects to DLH should be included in the D zone.…”

Section: Discussionmentioning

confidence: 99%

Topographic Organization of the Corticonuclear Fibers from the Tuber Vermis and Paramedian Lobule in the Albino Rat

Umetani

1989

Brain Behav Evol

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The topographic organization of the corticonuclear fibers from the tuber vermis and paramedian lobule in the albino rat was investigated by autoradiographic anterograde tracing method. The medial portion of the tuber vermis projects to the dorsal part of the caudomedial subdivision of the medial cerebellar nucleus (MNcm), whereas the lateral portion of the tuber vermis projects to the dorsal part of the MNcm and the caudal part of the middle subdivision of the medial nucleus. The intermediate cortex of the paramedian lobule can be subdivided mediolaterally into three portions which project to the dorsolateral protuberance of the medial cerebellar nucleus, the rostrodorsal part of the posterior interpositus nucleus, and the caudodorsal part of the lateral anterior interpositus nucleus, respectively. The lateral cortex of the paramedian lobule can also be subdivided mediolaterally into two portions: the medial portion projects to the dorsolateral hump, and the lateral one to the lateral cerebellar nucleus. These results indicate that the cortical efferent fibers from the tuber vermis and paramedian lobule are clearly organized in the mediolateral direction in the albino rat.

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Cerebello-Olivary Projections in the Rat

Cited by 50 publications

References 13 publications

Input-Output Organization of the Ventrolateral Nucleus of the Thalamus

Input-Output Organization of the Ventrolateral Nucleus of the Thalamus

The Dentatorubral Projection. An Autoradiography Study in Rats

Topographic Organization of the Corticonuclear Fibers from the Tuber Vermis and Paramedian Lobule in the Albino Rat

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